87734965 has 4 divisors (see below), whose sum is σ = 105281964. Its totient is φ = 70187968.

The previous prime is 87734939. The next prime is 87734987. The reversal of 87734965 is 56943778.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26801329 + 60933636 = 5177^2 + 7806^2 .

It is a cyclic number.

It is not a de Polignac number, because 87734965 - 2⁹ = 87734453 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8773492 + ... + 8773501.

It is an arithmetic number, because the mean of its divisors is an integer number (26320491).

Almost surely, 2^87734965 is an apocalyptic number.

It is an amenable number.

87734965 is a deficient number, since it is larger than the sum of its proper divisors (17546999).

87734965 is a wasteful number, since it uses less digits than its factorization.

87734965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17546998.

The product of its digits is 1270080, while the sum is 49.

The square root of 87734965 is about 9366.6944542886. The cubic root of 87734965 is about 444.3490292511.

The spelling of 87734965 in words is "eighty-seven million, seven hundred thirty-four thousand, nine hundred sixty-five".